LSherid
Mechanical
- Jan 20, 2016
- 2
Hello,
I am currently adapting an already existing Abaqus Model of an Additive Manufacturing process that includes a moving heat source along a substrate. The current model (190 different load steps) uses the temperature dependent properties of Ti-64 and runs completely within a day. When I change the material properties to another material of interest (IN718), the simulation runs much slower sometimes taking days to get only to step 20. I am assuming that the reason for this is due to the initial time step (about 1e-7) that I specify for each load step or possibly because of the DELTMX that I specify (DELTMX=200). Each step in the new simulation takes about 2000 increments to complete, but the Ti-64 model only takes about 20-40 for each step. I am expecting high thermal gradients and high cooling rates, but I need the simulation to be able to run quickly a I have a lot of simulations to run. What should I try to do to reduce my run-time?
Thanks.
I am currently adapting an already existing Abaqus Model of an Additive Manufacturing process that includes a moving heat source along a substrate. The current model (190 different load steps) uses the temperature dependent properties of Ti-64 and runs completely within a day. When I change the material properties to another material of interest (IN718), the simulation runs much slower sometimes taking days to get only to step 20. I am assuming that the reason for this is due to the initial time step (about 1e-7) that I specify for each load step or possibly because of the DELTMX that I specify (DELTMX=200). Each step in the new simulation takes about 2000 increments to complete, but the Ti-64 model only takes about 20-40 for each step. I am expecting high thermal gradients and high cooling rates, but I need the simulation to be able to run quickly a I have a lot of simulations to run. What should I try to do to reduce my run-time?
Thanks.